I am completing month 1 with my tread desk and love it. I bought a monitor arm and almost immediately was able to type efficiently. I do make more mistakes than before so I have to check myself carefully and my speed is not what it is at a sit down desk, but getting better.
My typical day is about 6 hours at the tread desk averaging 2.3 for typing and about 2.8 for conference calls or research. I use a headset and I have asked all my colleagues and no one can hear the tread desk. It does however make a rythmic thumping sound for the tenant in the suite below me, but she hasn't complained (and she does complain about the high heels on the hardwood in the common area). I have a pad under my desk and it is on carpeting also. I average about 40-50 miles a week and I am typically in the office 3-4 days a week. I am losing a pound a week without effort at all and my goal is to complete 2 "marathons" a week eventually. I also supplement it with fast walking outside at lunch sometimes and get an extra 4 miles in those days. Truly everyone should try this. I have offered everyone in my company one if they will commit to 3 hours a day. No one has taken me up yet due to the newness. I think they want to make sure I stay committed and I know I will! Stay tuned, a lot of orders might be coming in soon.
The only technical issue I have is my tread seems to drift to the right often and I have to adjust it. I do lubricate it every week, but not sure how to keep it from drifting. I also can't get the bluetooth to work (like the other reviewers).
By the way, I have never done a product review; but they are the reason I finally bought a tread desk so I thought I should also share my experiences.